test: add test case for issue 53702

The issue is expected to be fixed when Unified IR is enabled by default, so adding a test to make sure thing works correctly. Updates #53702 Change-Id: Id9d7d7ca4506103df0d10785ed5ee170d69988ba Reviewed-on: https://go-review.googlesource.com/c/go/+/423434 TryBot-Result: Gopher Robot <[email protected]> Reviewed-by: Matthew Dempsky <[email protected]> Reviewed-by: Ian Lance Taylor <[email protected]> Run-TryBot: Cuong Manh Le <[email protected]> Auto-Submit: Cuong Manh Le <[email protected]>
golang · Aug 14, 2022 · 45c748f · 45c748f
1 parent 7acbbbe
commit 45c748f
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diff --git a/test/fixedbugs/issue53702.go b/test/fixedbugs/issue53702.go
@@ -0,0 +1,39 @@
+// run
+
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+type Elem struct{}
+
+func (*Elem) Wait(callback func()) {}
+
+type Base struct {
+	elem [8]*Elem
+}
+
+var g_val = 1
+
+func (s *Base) Do() *int {
+	resp := &g_val
+	for _, e := range s.elem {
+		e.Wait(func() {
+			*resp = 0
+		})
+	}
+	return resp
+}
+
+type Sub struct {
+	*Base
+}
+
+func main() {
+	a := Sub{new(Base)}
+	resp := a.Do()
+	if resp != nil && *resp != 1 {
+		panic("FAIL")
+	}
+}
diff --git a/test/run.go b/test/run.go
@@ -1976,6 +1976,7 @@ var types2Failures32Bit = setOf(
 )
 
 var go118Failures = setOf(
+	"fixedbugs/issue53702.go",  // 1.18 compiler failed with "Value live at entry" error
 	"fixedbugs/issue54343.go",  // 1.18 compiler assigns receiver parameter to global variable
 	"typeparam/nested.go",      // 1.18 compiler doesn't support function-local types with generics
 	"typeparam/issue51521.go",  // 1.18 compiler produces bad panic message and link error